33122312213231 has 4 divisors (see below), whose sum is σ = 33128154927000. Its totient is φ = 33116469499464.

The previous prime is 33122312213219. The next prime is 33122312213267. The reversal of 33122312213231 is 13231221322133.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33122312213231 - 2⁶ = 33122312213167 is a prime.

It is a super-2 number, since 2×33122312213231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33122312213194 and 33122312213203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33122312213201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2921348381 + ... + 2921359718.

It is an arithmetic number, because the mean of its divisors is an integer number (8282038731750).

Almost surely, 2^{33122312213231} is an apocalyptic number.

33122312213231 is a deficient number, since it is larger than the sum of its proper divisors (5842713769).

33122312213231 is an equidigital number, since it uses as much as digits as its factorization.

33122312213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842713768.

The product of its digits is 7776, while the sum is 29.

Adding to 33122312213231 its reverse (13231221322133), we get a palindrome (46353533535364).

The spelling of 33122312213231 in words is "thirty-three trillion, one hundred twenty-two billion, three hundred twelve million, two hundred thirteen thousand, two hundred thirty-one".